mlb_get_lineups

Get MLB pre-game batting lineups and probable pitchers. Lineups typically appear 1-2 hours before first pitch. Available starting from the 2026 season.

SERVERMcp SOURCEhttps://mcp.balldontlie.io/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/io-balldontlie-mcp/mlb-get-lineups.md

WHAT IT DOES

What mlb_get_lineups does on Mcp

AI agents call mlb_get_lineups to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why mlb_get_lineups is rated Low

This tool queries and returns sports data (lineups and pitcher information) without any side effects. It is a standard read operation that retrieves publicly available sports information. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an AI agent could only display stale or incorrect sports information.

From the tool's definition Tool retrieves MLB pre-game batting lineups and probable pitchers—purely informational data with no modification, deletion, or execution capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mlb_get_lineups safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mlb_get_lineups, this is the rule to start with:

mlb_get_lineups Allowed

mlb_get_lineups is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mlb_get_lineups": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every mlb_get_lineups call is checked against it from then on.

FAQ

Questions about mlb_get_lineups

What does the mlb_get_lineups tool do? +

Get MLB pre-game batting lineups and probable pitchers. Lineups typically appear 1-2 hours before first pitch. Available starting from the 2026 season. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mlb_get_lineups? +

Register the MCP server in PolicyLayer and add a rule for mlb_get_lineups: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp. Nothing to install.

What risk level is mlb_get_lineups? +

mlb_get_lineups is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit mlb_get_lineups? +

Yes. Add a rate_limit block to the mlb_get_lineups rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block mlb_get_lineups completely? +

Set action: deny in the PolicyLayer policy for mlb_get_lineups. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides mlb_get_lineups? +

mlb_get_lineups is provided by the MCP server (https://mcp.balldontlie.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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